Yep.
If you want a revolver with no MIM parts you have about 3 surefire choices these days and none of them are cheap.
1.) Freedom Arms, although the frames are investment cast like a Ruger all the internals are machined from billet, and their reputation for strength and durability is well founded.
2.) Korth, yeah super expensive but every part is machined and then hand fitted.
3.) Manurhin, expensive and rare but there is a US importer for MR73's and they are serious .357's made the old fashioned way out of forgings and billet parts.
Not sure about Ruger and MIM, investment castings don't bother me to be honest as long as the finish machining is nice the parts are well proven for strength.
For that matter MIM parts don't really bother me if they were originally designed to be MIM and the quality of the process is there they can make for excellent parts, I just don't want to be a beta tester for MIM replacing a process for parts production where the original design called for a forging, or billet material be used. I can't imagine an MIM barrel having a good safety margin for something like a squib load followed by a full power load that would bulge a barrel made by hammer forging, or machined from billet. Seems like a method that will not result in parts with high ductile strength, don't seem suitable for a pressure vessel. Perhaps I am wrong.